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P. J. BESOSA. SHUTTER CONTROLLING MECHANISM FOR FILM CAMERAS.

APPLICATION FILED JULY 31, I915- RENEWED NOV 28, I917- 1,308,617.Patented July 1, 1919.

2 SHEETSSHEET I.

1 I I I I I I P. J. BESOSA.

SHUTTER CONTROLLING MECHANISM FOR FILM CAMERAS.

APPUCATION FILED JULY 31.1915. RENEWED NOV. 28. 1911.

1,308,617. Patented July '1, 1919.

2 SHEETS-SHEET 2.

5] vwe/wtoz UNITED STATES PATENT OFFICE.

rnnno manimsosa, or new voax, 11. Y.

SHUTTER-CONTROLLING liIE'CI-IANISM FOR FILM-CAMERAS.

Patented July 1, 1919.

Application filed July 81, 1915, Serial No. 42,914. Renewed November 28,1917. Serial No. 204,4.

To all whom it may concern Be. it known that I, PEDRO a citizen .of theUnited States, residing at thecity of New YOIK, borough of Manhattan,county and State of New York, have invented a certain new and usefulShutter- Controllin Mechanism for Film-Cameras, of which t e followingis a specification.

This invention is a means for usein connection with cameras,particularly film cameras, whereby the shutter is automatically.

looked after the sensitized surface shall have been exposed, provisionbeing made for the release of the shutter at the time a fresh sensitizedsurface is placed in line with the lens, as a result of which operationsa double exposure is precluded.

The objects of the invention are, first, to preclude the operation ofthe camera shutter after one photographic exposure shall have been madeupon a sensitized surface, thus preventing the operation of said camerashutter until the exposed photographic surface shall have been replacedby a fresh photographic surface, and, second, to enable the device to'beattached easily and quickly to 7 cameras now in use, although saiddevice may be embodied in cameras at the time of making thezsame.

In a preferred embodiment of the invention, means are provided forcooperation with the camera shutter and with a sensi-' tized roll'filmwhereby the shutter is locked against operation after it shall have beenonce operated to make a photographic exposure upon a definite part ofthe sensitized film, said shutter remaining in such locked condltionuntil released by means adapted to be actuated by movement imparted tothe film by the usual film operating devices of the camera, as a resultof which shutter locking and releasing operations the camera must bemanipulated in a way to avoid an undesirable second exposure of apreviously ex osed section or length of the film.

he invention, in a preferred form, embodies a shutter locking meanspositioned within the bellows of a camera, at "the rear part thereof,said shutter locking means bein connected by suitable means with theshutter, combined with film operated means for releasing said lockingmeans:

J UAN Bnsosn,

' ter being shown in dotted lines.

The invention embodies, also, an attaching device operatively connectedwith a part of the shutter-locking means, said attaching device beingoperable by hand for readily mounting the shutter-locking means within IFigure 1 is a front view of my invention applied to an ordinary filmcamera, the lat- Fjgi 2 is a side elevation of the invention, the camerabeing shown in dotted lines and the bellows being extended.

Fig. 3 is aside elevation of the carrier, the locking device, andcertain parts associated therewith, the parts being turned onequarterway around from the position shown in Figs. 1 and 2.

Fig. 4: is a view of the parts shown in Fig. 8, looking from the bottomthereof.

Fig. 5 ing member and the locking member removed from the carrier.

Fig. 6 is a view of the parts shown in Fig. 5, looking from the bottom.

Fig. 7 is an elevation of the parts shown in Figs. 3 and 4, lookingtoward the right.

hand end of said figures.

Fig. 8 is an end view of the parts shown in Figs. 5 and 6.

Fig. 9 is an elevation illustrating one means for fixedly mounting thecarrier within a camera, the latter being indicated in dotted lines.

A designates a part, termed herein a carrier, adapted to be positionedwithin a film camera, shown in dotted lines in Figs. 1 and 2. Said partis in the form of a substantially oblong or rectangular casing, one Wallof which is provided with a longitudinal slot 18, and one end of whichis open at a, as shown in Fig. 7. The carrier A supports the lockingmechanism, said locking mechanism operating to preclude movement of theshutter which cooperates with the lens tube, the latter bein indicatedby the numeral 1 in Figs. 1 an 2, whereas the releasing mechanism ispositioned in the path 9f the film mechanism and the releasingis a viewin elevation of the slidnally within said carrier.

21 as the latter passes from the supply spool to the take-up spool, asusual in ordinary film cameras, said releasing mechanism being adaptedto contact with the film as graphically illustrated in Fig. 2.

The carrier A occupies a vertical position within the bellows A of thecamera, substantially at the rear thereof, said carrier being retainedin a fixed position by any suitable means. One form of retaining meansfor the carrier is illustrated in Figs. 2 and 9, by reference to whichit Will be seen that the carrier A is fixedly attached to a supportingbar 22, the upper part of which bar is provided with spurs or teeth 25.Pivoted to the upper part of the bar 22 is a link 23 having pivotalconnection with a cooperating link 24, one end of said link 24 beingpointed so as to serve as a spur. In applying the device A to a camerathe bar 22 and the carrier A are positioned within the wooden frameshown in dotted lines at 27 (Fig. 9) at the rear of the camera, whereasthe links 23, 24 occupy the dotted line position of Fig. 9. As shown,the spurs 25 of the bar 22 and the pointed end of the link 24 are incontact with the opposite side portions of the wooden camera frame 27,and by pressing upwardly on the links 23, 24 at their pivotalconnection, the links are straightened so as to assume the full lineposition of Fig. 9, whereby the spurs 25 of the bar 22 and the pointedend of the link 24 are embedded within the wooden frame, the effect ofwhich is to fixedly support the bar 22 and the carrierA within thecamera. It is manifest that the carrier and its sup porting devices mayeasily and quickly be attached to an ordinary film camera within thebellows A and at the rear thereof, thus enabling the device of myinvention to be applied to cameras already made and in the possession ofthe users, although it is apparent that the carrier A and its supportingmeans may be embodied in new cameras during the process of manufacturingthe same.

9 designates a member slidable within the chambered carrier A. Saidslidable member 9, shown in detail in Figs. 5, 6 and 7, is in the formof a three-sided piece adapted for engagement with the walls of thechambered carrier, but the lineal dimensions of the slidable member 9are considerably less than the corresponding dimensions of the carrierA, so that the part 9 is free to move longitudi- The slidable member 9is normally pressed toward the open end a of the carrier by a spring 17,the latter being shown as a coiled spring which, with the slidingmember, is incased within said carrier A. It is apparent that the spring17 impels the slidable member in one direction. but said member is movedpositively in the opposite direction by a flexible wire or cable 8, thelatter being attached in any preferred way to the sliding member 9 forthe purpose of pulling said member against the tension of the spring.

Referring now more particularly to Figs. 3 to 8, inclusive, the slidablemember 9 is provided in one end with a slot 9 ,(see Fig. 8), and withinthis, slidablemember is positioned a locking member 10, the latterbeingin the form of a plate which is provided at its free end with ahook or beak 10. Said locking member or latch 10 is pivoted by a pin 10to the sliding member, and to this pivoted latch is attached one endportion of a leaf spring 15, the other end portion of said spring beingseated against the sliding member so that the spring and the pivotedlatch will travel with the sliding member, and said spring actsconstantly on the pivoted latch to I110"B the hook-shaped end thereof inthe path of a releasing-plate 11. Said plate 11 is applied laterallyagainst one side of the carrier A, and as shown in Fig. 3, thisreleasing member is pivoted to the carrier by a pin 26. The releasingmemher is provided witha notched or cut-away portion 19, with a finger12, and with a curved contacting edge 20, all as clearly shown in Fig.3. A stop pin fixed to carrier A arrests the pivotal movement ofreleasing plate 11 when the latter moves in one direction. The slidingmember 9 is provided at one end with a stud 13 positioned for movementin the slot 18 of the carrier, said stud 13 being opposite to thecut-away portion 19 of the releasing plate. The finger 12 is provided onthe releasing plate at a point to extend across the path of the beak 10of the pivoted latch.

The flexible wire or cable 8 extends loosely through a tubular flexiblecord 2, said Wire 8 and tubular cord 2 extending from the carrier Aupwardly through the rear part of bellows A, thence passing through anopenmg in the bellows, and thence passing loosely outside of thebellows, all as shown in Fig. 2. The cord 2 and wire 8 are flexible soas to fold and unfold with the bellows, said cord 2 and wire 8 extendingfrom the carrier A at the rear of the bellows to the front plate or headof said can'iera, see Figs. 1 and 2. The forward part of the tubularcord 2 is attached to a bracket plate 2 fixed on the tube 1 whichcarries the shutter, the connection between the tubular cord 2 and thebracket plate 2 being effected by a thumb nut 2 The forward part of theflexible wire or cable 8 extends through the nut and the bracket plateso as to be attached to a link 3. Said link 3 together with another linkl are pivotet by a common pin to an arm 5 of the shutter mechanism. Thelink 4 is pivoted at its other end to a slide 7. the latter beingloosely held on a fixed slotted plate 14 by means of a pin or otherdevice, whereby the slide 7 is adapted for movement relatively to theplate 14 for the purpose of actuating the links 3, 4, the movement ofthe link 4 serving to operate the arm 5 and the shutter, whereas themovement of the link 3 pulls on the flexible wire or cable 8 so as toimpart movement to'the slidable member 9. i

A short length of tubular cord 6 is attached by suitable means to anangular end portion of the fixed slotted plate 14, see Figs. 1 and 2,and through said tubular cord extends a flexiblewire or cable 6, thelatter being attached to the slide 7 so that when an operator presses'on the cord or cable 6 the slide 7 will be moved forwardly upon theslotted plate 14 for the purpose of imparting movement to the linksinbefore described.

It will be understood that when the re- 3. and 4, as hereleasing plateand'its finger 12 are in the position shown in Fig. 3, the finger is inthe path of the hook 10 so as to lock the latch 10 and the carrier ,9against movement by the pull of the flexible wire or cable 8, the

effect of which is to lock the shutter arm 5 from movement, whereby theshutter mechadrawn from the nism is precluded from operation bypressure'upon the wire or cord 6. The releasing plate 11 is supported bythe carrier A in a position for its curved edge 20 to contact with thefilm 21, and when the film is moved by the manipulation of devices usualin a camera to feed the film a predetermined distance, the contact ofthe edge 20 with the moving film will act to turn the plate 11 on thepin 26, whereby the finger 12 is withath of the hook 10 on the latch'lO,so tliat the movement of the plate 11 will free the latch 10 and thuspermit the cable 8 to operate the shutter when pressure is applied tothe wire or cable 6'. It is to be noted in this connection, however,that after a part of the film has been exposed and prior to themoveme'ntof the film so as to present a fresh surface in the focal plane of thelens the latch 10 will engage with the finger 12 of the releasing plateso as to lock the shutter against a subsequent movement should pressurebe applied to the cord 6 for the operation of the s utter, thuspreventing the camera from being operated or manipulated throughinadvertence or carelessness in such a way that a second exposure may bemade upon a previously exposed part of the film; but when the opera-.tor feeds the film the required distance the movement of the film incontact with the edge 20 will turn the releasing plate 11 so astowithdraw the finger 12 from the path of the hook and latch, whereby theshutter can be thereafter operated by applying pressure to the wire 6 soas to effect the subsequent exposure of the film in the usual manner.

The releasing plate, when turned to a 17091- tian to withdraw its fingerfrom the path of the hook on the latch is returned to a norfilm by asingle movement of the shutter, or

with a time exposure, or witha bulb-controlled exposure, and in thisconnection'the cut-away portion 19 of the releasin member 11 allows thestud 13 to co-act wit said releasing member under all conditions ofexthus fully described the inven- I claim as new, and desire to y ingmember, of a supporting member posi- 1 tioned adjacent the path of afilm, a shutterlocking member carried by the supporting member, meansfor operatively connecting the shutter-locking member with saidshutter-operating member, and means cooperat ing with theshutter-locking member, said last mentioned means being positioned forcontact with a film and operated by the movement thereof to release theshutter locking member from restraint.

2. The combination with a shutter-operating member, of a shutter-lockingmember operatively connected with said shutter operating member 4 so asto be responsive to the movements thereof, and a releasingmembercooperating directly-with the shutter locking member for restraining theletter from responding to the movements of the shutter operating member,said releasing member being positioned for contact-with a film andadapted tobe shifted by the; move: ment of said film into a-positionto-free shutter locking member from restraint. I

I 3. The combination with a film camera and a shutter therefor, ofshutter locking means, and releasing-means cooperating with said lockingmeansl'said shutter locking means and said releasing means" beingmounted on a carrier having means for readily attaching the same to saidc mera 4. .In a device of. the class -'desci'ihed, the combination with.a carrier, of a tta sching means therefor, a locking dog movablerelatively to said carrier, shutter controlling means cooperating withsaid dog, and a. film operated releasing member positioned for contactwith said locking-dog, a

5. In a device of the class described, the combination with a carrier,of attaching means therefor, a member slidably connected with saidcarrier, to locking dog pivoted to the . the slidable member, shuttercontrolling:

means cooperating with said slidable member, and a film-operatedreleasing member pivoted to the carrier, said 'releasing'member havingmeans for returning the locking dog to a free position.

6. In a device of the class described, thecombination with a carrier, ofattaching means therefor, a member slidable within the carrier, alocking dog pivoted to said slidable member, a spring for moving saiddog in one direction, a releasing plate pivoted to said carrier andprovided with a finger positioned in the path of: said locking dog, saidreleasing plate having a curved edge adapted for engagement with a film,and means for operating said slidable memher.

7. In a device of the class described, the combination of a carrier, amember slidable therein, a spring for moving said member in onedirection, a cable for moving the member in an opposite direction, alocking dog pivoted to the slidable member, and a releasing memberpivoted to the carrier, said releasing member having means forengagement with the locking dog and said releasing membe having a curvededge p0- sitioned for contact with a film 8. In a device of the classdescribed, the combination of a carrier, a member slidable therein, aspring for moving said member in one direction, a cable for moving themember in an opposite direction, a locking dog pivoted to the slidablemember, and a film operated releasing member cooperating with thelocking dog, said releasing member being provided with a cut awayportion and said slidable member having a stud positioned for contactwith said releasing member. Y 9. In a device of the class described, thecombination with a carrier of a supporting member attached thereto,means cooperating with said supporting member for fixedly attaching thesame to a camera, shutter look- 'to said member, manually operable meansfor imparting movement to the slide, a carrier, a slidable memberthereon, a cable attached to the slidable member and linked to theshutter operating member, a locking dog movable with the slidablemember, and a film operated releasing member cooperating with saidlocking dog.

11. The combination with a shutter-operating member, ofmanually-operable means cooperating directly therewith, a shutterlockingmem'ber connected operatively with said shutter-operating member andresponsiVe to the movements thereof when operated by saidmanually-operable means, and a releasing member cooperating with saidshutter-locking member for restraining the same from movement, saidreleasing member being positioned for contact with a photographicsurface so as to be actuated by the movement thereof.

12. The combination with a shutter-operating member, of ashutter-locking member adapted to respond to the movements 'of saidshutter operating member, and a releasing member cooperating directlywith "the shutter locking member for restraining the same from movement,said releasing member being positioned for contact with a photographicsurface andactuated by the movement involved in replacing an exposedsurface by an unexposed sensitized surface.

In testimony whereof I have hereunto signed my name.

PEDRO JUAN BESOSA. Witnesses:

C. Bps'rAMANTnFr, M. C. RODRIGUEZ.

